Thermal barrier liner for containers

Abstract

A thermal barrier maintains a beverage within a container at a desired temperature. The barrier may include gas or liquid filled microcapsules and a base material having microencapsulated solid-liquid phase change material, or combinations thereof. The thermal barrier may include a cooling element attached to the exterior of the container, the interior of the container, or free-floating within the container. Other embodiments include a container holder incorporating phase change materials to control temperature of the beverages. The holder includes enclosing sidewalls and a plurality of cavities to receive one or more containers. Gaps between the cavities and the enclosing sidewalls are filled with phase change materials, such as microencapsulated phase change materials. Another embodiment provides a double walled pitcher with phase change materials and a base material filling the space between the walls. The phase change material and base material sealed between the walls enable the pitcher to be re-used.